read config, ensure cache exists, fuck lifetimes

Cargo.toml

@@ -11,3 +11,5 @@ iced = "0.9.0"
 regex = "1.8.4"
 reqwest = "0.11.18"
 scraper = "0.16.0"
+serde = { version = "1.0.164", features = ["derive"] }
+serde_json = "1.0.97"

src/lib.rs

@@ -1,4 +1,6 @@
-use std::fs;
+use std::{fs, path::Path};
+
+use serde::{Deserialize, Serialize};
 
 pub struct ConfigFile {
     pub latest_date: String,
@@ -8,32 +10,51 @@ pub struct ConfigFile {
 pub fn get_home() -> String {
     let home = match std::env::consts::OS {
         "linux" => std::env::var("HOME").expect("how is there not a $HOME"),
-        "windows" => std::env::var("userprofile").expect("yell at me if this doesn't work please i'm not going to touch windows"),
-        _ => std::env::var("HOME").expect("if this doesn't work, you're probably on macos, which i literally cannot test on"),
+        "windows" => std::env::var("userprofile")
+            .expect("yell at me if this doesn't work please i'm not going to touch windows"),
+        _ => std::env::var("HOME").expect(
+            "if this doesn't work, you're probably on macos, which i literally cannot test on",
+        ),
     };
     // println!("{home}");
     home
 }
 
-pub fn create_config(file: String) -> bool {
-    let replaced = file.replace('~', &get_home()[..]);
-    let mut paths = replaced.split('/').collect::<Vec<&str>>();
-    let filename = paths.pop();
+pub fn create_config(file: &String) -> bool {
+    let replaced = file.replace('~', &get_home()[..]); // replace ~ with $HOME
+    let mut paths = replaced.split('/').collect::<Vec<&str>>(); // split path by /
+    paths.pop();
     let path = paths.join("/");
-    let file_path = std::path::Path::new(&path);
-    let file_contents = "{\"latest_date\": \"20021104\",\"cache_folder\": \"~/.cache/ggg\"}"; 
-    if let Some(p) = file_path.parent() { 
-        fs::create_dir_all(p).expect("couldn't create needed folders")
+    let file_path = std::path::Path::new(&path); // Path without the filename
+
+    if let Some(_) = file_path.parent() {
+        // if the file_path has a parent folder
+        fs::create_dir_all(&path).expect("couldn't create needed folders") // create folders
     };
 
-    let cfg_path = std::path::Path::new(format!("{}/{}", file_path.display(), filename.expect("filename somehow died, if you know how please tell me")));
-
-    if cfg_path.exists() {
-        false
-    } else {
-
-        fs::write(cfg_path, file_contents).expect("couldn't write to config file");
+    if file_path.exists() && !Path::new(&replaced).exists() {
+        let file_contents = "{\"latest_date\": \"20021104\",\"cache_folder\": \"~/.cache/ggg\"}";
+        fs::write(replaced, file_contents).expect("couldn't write to config file");
         true
+    } else {
+        false
     }
-
+}
+
+pub fn read_config(file: &String) -> Config {
+    let read = fs::read_to_string(file).expect("couldn't read config file");
+    serde_json::from_str(&read[..]).expect("couldn't parse json")
+}
+
+pub fn ensure_exists(path: String) {
+    let p = Path::new(&path);
+    if !p.exists() {
+        fs::create_dir_all(p).expect("couldn't create folder")
+    }
+}
+
+#[derive(Serialize, Deserialize)]
+pub struct Config {
+    pub latest_date: String,
+    pub cache_folder: String,
 }

src/main.rs

@@ -12,5 +12,7 @@ fn main() {
 
     let config_file = args.config_file;
 
-    ggg::create_config(config_file);
+    ggg::create_config(&config_file);
+    let config = ggg::read_config(&config_file);
+    ggg::ensure_exists(config.cache_folder)
 }